2004 Taurus Gross Air Leak

2004 FORD FIVE HUNDRED
140,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
GATEDAD61
  • MEMBER
  • 1 POST
2004 Taurus gets a P0455 code with Check Engine light. Periodially also get a gas cap light. I have replaced gas cap twice and checked filler neck for leaks. Any ideas on where the "ECS Gross Leak" could be?
Jun 6, 2011 at 9:59 AM
Avatar
CARADIODOC
  • ✓Experienced Mechanic
  • 34,387 POSTS
Could be anywhere along the frame up to the front and back to the gas tank. If you don't find a hose clamp rusted off the hose to the charcoal canister, the best tool to use is a smoke machine to inject white smoke at 2 psi and watch where it seeps out.
Jun 6, 2011 at 10:49 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle